Supercell over Laramie
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Wyoming Snow Precipitation Update

United States Natural Resources Water and Climate Center Department of Conservation Portland, Oregon Agriculture Service S N O W - P R E C I P I T A T I O N U P D A T E Based on Mountain Data from NRCS SNOTEL Sites As of SATURDAY: MARCH 8 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 21.7 13.8 157 22.7 18.0 126 BLACK BEAR 8170 35.0 30.9 113 32.7 32.6 100 BLIND BULL SUM 8650 33.3 19.0 175 22.0 16.6 133 COTTONWOOD CREEK 7670 28.0 18.2 154 30.0 20.5 146 EAST RIM DIVIDE 7930 16.4 9.2 178 14.5 10.0 145 GRAND TARGHEE 9260 42.7 31.3 136 32.1 25.4 126 GRANITE CREEK 6770 -M 14.4 * -M 17.3 * GRASSY LAKE 7265 33.9 27.2 125 32.8 30.8 106 GROS VENTRE SUMMIT 8750 14.2 10.7 133 14.0 10.7 131 GUNSIGHT PASS 9820 18.7 11.3 165 17.2 11.4 151 LEWIS LAKE DIVIDE 7850 32.9 25.9 127 30.8 30.3 102 PHILLIPS BENCH 8200 31.0 20.8 149 27.6 23.8 116 SALT RIVER SUMMIT 7760 16.9 11.0 154 17.7 14.0 126 SNAKE RIVER STATION 6920 19.3 14.9 130 21.7 19.5 111 SPRING CREEK DIVIDE 9000 32.3 19.5 166 28.4 20.1 141 THUMB DIVIDE 7980 15.0 12.8 117 14.0 15.5 90 TOGWOTEE PASS 9580 28.8 19.2 150 24.9 20.4 122 TWO OCEAN PLATEAU 9240 34.4 22.5 153 -M 22.9 * WILLOW CREEK 8380 35.2 23.8 148 -M 28.0 * YOUNTS PEAK 8350 -M 12.1 * -M 13.2 * ----- ----- Basin Index (%) 143 120 MADISON-GALLATIN BLACK BEAR 8170 35.0 30.9 113 32.7 32.6 100 CANYON 7870 12.3 11.3 109 14.3 13.7 104 MADISON PLATEAU 7750 19.9 18.8 106 20.0 22.4 89 WEST YELLOWSTONE 6700 11.8 9.4 126 12.8 12.2 105 WHISKEY CREEK 6800 14.7 12.8 115 17.0 17.1 99 ----- ----- Basin Index (%) 113 99 YELLOWSTONE BEARTOOTH LAKE 9360 26.9 18.0 149 24.6 16.6 148 BURNT MTN 5880 8.2 4.4 186 -M 9.8 * CANYON 7870 12.3 11.3 109 14.3 13.7 104 COLE CREEK 7850 15.3 10.9 140 11.1 9.6 116 EVENING STAR 9200 34.0 20.5 166 -M 23.1 * FISHER CREEK 9100 37.5 26.6 141 33.1 26.7 124 NORTHEAST ENTRANCE 7350 13.4 8.6 156 13.3 10.3 129 PARKER PEAK 9400 26.3 16.5 159 21.4 14.7 146 SYLVAN LAKE 8420 20.5 16.7 123 23.3 18.8 124 THUMB DIVIDE 7980 15.0 12.8 117 14.0 15.5 90 TWO OCEAN PLATEAU 9240 34.4 22.5 153 -M 22.9 * WHITE MILL 8700 29.2 18.9 154 25.0 19.9 126 WOLVERINE 7650 15.3 9.0 170 14.6 10.4 140 ----- ----- Basin Index (%) 147 125 WIND RIVER BURROUGHS CREEK 8750 -M 11.2 * -M 13.3 * CASTLE CREEK 8400 10.3 -M * 11.8 -M * COLD SPRINGS 9630 9.6 5.8 166 11.9 7.9 151 DEER PARK 9700 -M 11.6 * 16.5 16.0 103 HOBBS PARK 10100 12.3 10.7 115 10.4 10.1 103 KIRWIN 9550 16.7 7.6 220 15.3 9.2 166 LITTLE WARM 9370 13.5 8.5 159 15.6 10.4 150 OWL CREEK 8975 6.3 4.2 150 6.2 4.5 138 SOUTH PASS 9040 14.4 12.3 117 13.2 14.3 92 ST. LAWRENCE ALT 8620 3.8 5.7 67 6.8 6.9 99 TOGWOTEE PASS 9580 28.8 19.2 150 24.9 20.4 122 TOWNSEND CREEK 8700 6.0 7.2 83 6.7 9.1 74 ----- ----- Basin Index (%) 137 117 BIGHORN BASIN BALD MTN. 9380 20.6 15.8 130 15.8 13.8 114 BEAR TRAP MEADOW 8200 9.0 4.6 196 8.9 6.4 139 BONE SPRINGS DIV 9350 17.6 13.1 134 13.7 12.3 111 GRAVE SPRINGS 8550 9.7 7.3 133 9.9 8.2 121 KIRWIN 9550 16.7 7.6 220 15.3 9.2 166 MARQUETTE 8760 10.3 -M * 10.0 -M * MIDDLE POWDER 7760 13.1 8.6 152 10.8 9.1 119 OWL CREEK 8975 6.3 4.2 150 6.2 4.5 138 POWDER RIVER PASS 9480 13.2 8.3 159 13.9 10.0 139 SHELL CREEK 9580 16.1 12.2 132 13.7 11.0 125 TIMBER CREEK 7950 5.3 4.0 132 7.0 5.5 127 ----- ----- Basin Index (%) 149 128 SHOSHONE RIVER BLACKWATER 9780 28.1 18.6 151 24.9 16.9 147 EVENING STAR 9200 34.0 20.5 166 -M 23.1 * MARQUETTE 8760 10.3 -M * 10.0 -M * SYLVAN ROAD 7120 14.2 9.9 143 18.5 14.5 128 YOUNTS PEAK 8350 -M 12.1 * -M 13.2 * ----- ----- Basin Index (%) 156 138* POWDER RIVER BEAR TRAP MEADOW 8200 9.0 4.6 196 8.9 6.4 139 CLOUD PEAK RESERVOIR 9860 16.2 11.3 143 14.0 10.1 139 GRAVE SPRINGS 8550 9.7 7.3 133 9.9 8.2 121 HANSEN SAWMILL 8360 8.0 5.0 160 10.1 6.4 158 MIDDLE POWDER 7760 13.1 8.6 152 10.8 9.1 119 POWDER RIVER PASS 9480 13.2 8.3 159 13.9 10.0 139 SOLDIER PARK 8720 10.3 -M * 9.1 -M * ----- ----- Basin Index (%) 153 135 TONGUE RIVER BIG GOOSE 7990 8.7 6.6 132 10.6 8.3 128 BONE SPRINGS DIV 9350 17.6 13.1 134 13.7 12.3 111 BURGESS JUNCTION 7880 11.5 9.0 128 12.5 9.5 132 DOME LAKE 8880 11.6 9.2 126 10.7 10.4 103 LITTLE GOOSE 8870 10.0 -M * 12.7 -M * SUCKER CREEK 8880 13.4 9.8 137 14.9 11.1 134 TIE CREEK 6870 6.5 4.7 138 11.5 8.8 131 ----- ----- Basin Index (%) 132 122 BELLE FOURCHE COLE CANYON 5910 5.9 4.9 120 12.4 7.3 170 ----- ----- Basin Index (%) 120 170 CHEYENNE RIVER BASIN BLIND PARK 6890 8.3 6.6 126 15.0 9.8 153 NORTH RAPID CREEK 6130 8.4 6.2 135 13.6 8.0 170 ----- ----- Basin Index (%) 130 161 UPPER N. PLATTE ARAPAHO RIDGE 10960 24.1 17.4 139 23.9 18.4 130 BLACKHALL MTN 9820 32.0 -M * 27.2 -M * COLUMBINE 9160 30.7 20.8 148 -M 21.3 * DIVIDE PEAK 8880 16.0 16.8 95 19.4 17.6 110 JOE WRIGHT 10120 18.1 18.0 101 27.0 21.0 129 LAPRELE CREEK 8375 7.2 8.2 88 8.6 9.8 88 MED BOW 10500 13.8 -M * 28.8 -M * NORTH FRENCH CREEK 10130 -M 22.1 * -M 22.1 * NEVER SUMMER 10280 21.5 16.7 129 16.4 -M * OLD BATTLE 10000 28.5 25.1 114 32.2 29.3 110 RAWAH 9020 12.4 9.1 136 14.9 11.4 131 SAGE CREEK BASIN 7850 9.9 11.2 88 10.8 12.2 89 SAND LAKE 10050 27.6 22.0 125 26.5 20.0 132 SOUTH BRUSH CREEK 8440 10.3 11.0 94 12.5 12.3 102 TOWER 10500 45.7 37.8 121 -M 33.4 * WEBBER SPRINGS 9250 22.4 19.8 113 24.7 22.2 111 WILLOW CREEK PASS 9540 12.8 10.1 127 13.2 10.9 121 ZIRKEL 9340 37.7 24.7 153 25.8 24.1 107 ----- ----- Basin Index (%) 121 114 SWEETWATER DEER PARK 9700 -M 11.6 * 16.5 16.0 103 LARSEN CREEK 9000 12.8 10.1 127 14.7 -M * SOUTH PASS 9040 14.4 12.3 117 13.2 14.3 92 ----- ----- Basin Index (%) 121 98 LOWER N. PLATTE CASPER MTN. 7900 -M 11.2 * -M 11.6 * LAPRELE CREEK 8375 7.2 8.2 88 8.6 9.8 88 RENO HILL 8400 13.4 11.0 122 15.7 11.8 133 WINDY PEAK 7900 7.0 6.4 109 9.6 8.3 116 ----- ----- Basin Index (%) 108 113 LARAMIE RIVER BROOKLYN LAKE 10240 27.0 16.3 166 26.3 17.0 155 CINNABAR PARK 9574 20.5 17.7 116 20.4 20.3 100 CROW CREEK 8330 6.7 7.0 96 10.0 8.3 120 DEADMAN HILL 10220 21.3 12.8 166 19.9 13.7 145 RAWAH 9020 12.4 9.1 136 14.9 11.4 131 ROACH 9700 -M 13.1 * -M 15.6 * ----- ----- Basin Index (%) 140 129 S. PLATTE BLACK MOUNTAIN 8920 10.5 -M * 11.7 -M * CROW CREEK 8330 6.7 7.0 96 10.0 8.3 120 DEADMAN HILL 10220 21.3 12.8 166 19.9 13.7 145 ----- ----- Basin Index (%) 141 136 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.3 10.3 100 14.9 12.6 118 DIVIDE PEAK 8880 16.0 16.8 95 19.4 17.6 110 ELK RIVER 8700 19.4 16.6 117 19.8 16.8 118 LITTLE SNAKE RIVER 8915 26.7 20.2 132 30.6 25.6 120 OLD BATTLE 10000 28.5 25.1 114 32.2 29.3 110 SAGE CREEK BASIN 7850 9.9 11.2 88 10.8 12.2 89 SANDSTONE RS 8150 10.7 11.7 91 15.6 15.7 99 WHISKEY PARK 8950 34.5 22.8 151 34.3 23.4 147 ----- ----- Basin Index (%) 116 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.6 10.6 138 13.8 11.0 125 BLIND BULL SUM 8650 33.3 19.0 175 22.0 16.6 133 EAST RIM DIVIDE 7930 16.4 9.2 178 14.5 10.0 145 ELKHART PARK G.S. 9400 16.6 9.9 168 15.7 11.0 143 GROS VENTRE SUMMIT 8750 14.2 10.7 133 14.0 10.7 131 GUNSIGHT PASS 9820 18.7 11.3 165 17.2 11.4 151 KENDALL R.S. 7740 21.6 10.3 210 -M 12.3 * LOOMIS PARK 8240 23.0 12.5 184 22.3 14.7 152 NEW FORK LAKE 8340 15.4 8.8 175 13.0 9.2 141 POCKET CREEK 9360 12.2 -M * 12.0 -M * SNIDER BASIN 8060 18.6 10.5 177 18.2 12.0 152 SPRING CREEK DIVIDE 9000 32.3 19.5 166 28.4 20.1 141 TRIPLE PEAK 8500 32.3 18.2 177 33.7 21.2 159 ----- ----- Basin Index (%) 171 144 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.4 -M * 11.3 -M * BUCK PASTURE 9700 12.4 -M * 13.8 -M * EF BLACKS FORK GS 9360 8.6 -M * 8.7 -M * HAMS FORK 7840 14.5 9.8 148 12.7 9.5 134 HEWINTA 9519 9.2 8.5 108 11.9 11.3 105 HICKERSON PARK 9145 6.4 6.2 103 7.7 8.0 96 HOLE-IN-ROCK 9150 5.8 5.9 98 7.7 7.4 104 INDIAN CREEK 9425 29.1 19.9 146 24.4 18.7 130 KELLEY R.S. 8180 17.4 12.5 139 19.0 15.2 125 SPIRIT LK 10235 7.8 -M * 11.1 -M * STEEL CREEK PARK 10200 15.8 12.3 128 13.7 13.0 105 ----- ----- Basin Index (%) 131 117 UPPER BEAR RIVER BEAR RIVER RS 8777 8.5 -M * 10.6 -M * BUG LAKE 7950 20.5 15.8 130 18.0 16.1 112 BURTS MILLER RANCH 8000 6.3 -M * 6.0 -M * CHALK CREEK #1 8993 19.6 19.4 101 19.6 20.5 96 HAYDEN FORK 9212 13.7 12.8 107 17.7 17.1 104 KELLEY R.S. 8180 17.4 12.5 139 19.0 15.2 125 LILY LAKE 9156 12.0 10.8 111 13.2 13.9 95 MONTE CRISTO 8960 23.8 22.5 106 22.0 21.4 103 SALT RIVER SUMMIT 7760 16.9 11.0 154 17.7 14.0 126 ----- ----- Basin Index (%) 118 108 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Average value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1981-2010. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median for the day is less than 10% of the maximum median value for the year. * Basin - More than half of the sites within the basin are flagged with *, preventing the calculation of a meaningful basin index. The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians (for snow water equivalent) or averages (for precipitation) and the resulting fraction multiplied by 100. ---------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Average value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1981-2010. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median for the day is less than 10% of the maximum median value for the year. * Basin - More than half of the sites within the basin are flagged with *, preventing the calculation of a meaningful basin index. The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians (for snow water equivalent) or averages (for precipitation) and the resulting fraction multiplied by 100.